The pair was together for three years before photographs surfaced that helped reveal the 22-year-old actress had cheated on her 26-year-old boyfriend with Rupert Sanders, who directed her in "Snow White and the Huntsman" and is a married father of two.

A source told People earlier that Pattinson was "heartbroken and angry," and Stewart followed up the revelation of her cheating with a public apology to him.

"I'm deeply sorry for the hurt and embarrassment I've caused to those close to me and everyone this has affected. This momentary indiscretion has jeopardized the most important thing in my life, the person I love and respect the most, Rob. I love him, I love him, I'm so sorry," she said in a statement.

Sanders issued an apology, too, saying he was "utterly distraught" by having hurt his family.